21117060

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{103}}^1$

素因数の和:202

約数の個数: 144

約数和(自身を含む): 69503616

約数和(自身を除く): 48386556

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 17, 18, 20, 30, 34, 36, 45, 51, 60, 67, 68, 85, 90, 102, 103, 134, 153, 170, 180, 201, 204, 206, 255, 268, 306, 309, 335, 340, 402, 412, 510, 515, 603, 612, 618, 670, 765, 804, 927, 1005, 1020, 1030, 1139, 1206, 1236, 1340, 1530, 1545, 1751, 1854, 2010, 2060, 2278, 2412, 3015, 3060, 3090, 3417, 3502, 3708, 4020, 4556, 4635, 5253, 5695, 6030, 6180, 6834, 6901, 7004, 8755, 9270, 10251, 10506, 11390, 12060, 13668, 13802, 15759, 17085, 17510, 18540, 20502, 20703, 21012, 22780, 26265, 27604, 31518, 34170, 34505, 35020, 41004, 41406, 51255, 52530, 62109, 63036, 68340, 69010, 78795, 82812, 102510, 103515, 105060, 117317, 124218, 138020, 157590, 205020, 207030, 234634, 248436, 310545, 315180, 351951, 414060, 469268, 586585, 621090, 703902, 1055853, 1173170, 1242180, 1407804, 1759755, 2111706, 2346340, 3519510, 4223412, 5279265, 7039020, 10558530, 21117060]

約数ペア:

[(1, 21117060), (2, 10558530), (3, 7039020), (4, 5279265), (5, 4223412), (6, 3519510), (9, 2346340), (10, 2111706), (12, 1759755), (15, 1407804), (17, 1242180), (18, 1173170), (20, 1055853), (30, 703902), (34, 621090), (36, 586585), (45, 469268), (51, 414060), (60, 351951), (67, 315180), (68, 310545), (85, 248436), (90, 234634), (102, 207030), (103, 205020), (134, 157590), (153, 138020), (170, 124218), (180, 117317), (201, 105060), (204, 103515), (206, 102510), (255, 82812), (268, 78795), (306, 69010), (309, 68340), (335, 63036), (340, 62109), (402, 52530), (412, 51255), (510, 41406), (515, 41004), (603, 35020), (612, 34505), (618, 34170), (670, 31518), (765, 27604), (804, 26265), (927, 22780), (1005, 21012), (1020, 20703), (1030, 20502), (1139, 18540), (1206, 17510), (1236, 17085), (1340, 15759), (1530, 13802), (1545, 13668), (1751, 12060), (1854, 11390), (2010, 10506), (2060, 10251), (2278, 9270), (2412, 8755), (3015, 7004), (3060, 6901), (3090, 6834), (3417, 6180), (3502, 6030), (3708, 5695), (4020, 5253), (4556, 4635)]