21324420

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{701}}^1$

素因数の和:742

約数の個数: 108

約数和(自身を含む): 70142436

約数和(自身を除く): 48818016

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 30, 36, 39, 45, 52, 60, 65, 78, 90, 117, 130, 156, 169, 180, 195, 234, 260, 338, 390, 468, 507, 585, 676, 701, 780, 845, 1014, 1170, 1402, 1521, 1690, 2028, 2103, 2340, 2535, 2804, 3042, 3380, 3505, 4206, 5070, 6084, 6309, 7010, 7605, 8412, 9113, 10140, 10515, 12618, 14020, 15210, 18226, 21030, 25236, 27339, 30420, 31545, 36452, 42060, 45565, 54678, 63090, 82017, 91130, 109356, 118469, 126180, 136695, 164034, 182260, 236938, 273390, 328068, 355407, 410085, 473876, 546780, 592345, 710814, 820170, 1066221, 1184690, 1421628, 1640340, 1777035, 2132442, 2369380, 3554070, 4264884, 5331105, 7108140, 10662210, 21324420]

約数ペア:

[(1, 21324420), (2, 10662210), (3, 7108140), (4, 5331105), (5, 4264884), (6, 3554070), (9, 2369380), (10, 2132442), (12, 1777035), (13, 1640340), (15, 1421628), (18, 1184690), (20, 1066221), (26, 820170), (30, 710814), (36, 592345), (39, 546780), (45, 473876), (52, 410085), (60, 355407), (65, 328068), (78, 273390), (90, 236938), (117, 182260), (130, 164034), (156, 136695), (169, 126180), (180, 118469), (195, 109356), (234, 91130), (260, 82017), (338, 63090), (390, 54678), (468, 45565), (507, 42060), (585, 36452), (676, 31545), (701, 30420), (780, 27339), (845, 25236), (1014, 21030), (1170, 18226), (1402, 15210), (1521, 14020), (1690, 12618), (2028, 10515), (2103, 10140), (2340, 9113), (2535, 8412), (2804, 7605), (3042, 7010), (3380, 6309), (3505, 6084), (4206, 5070)]