21651030

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{89}}^1$

素因数の和:175

約数の個数: 128

約数和(自身を含む): 62985600

約数和(自身を除く): 41334570

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 17, 18, 27, 30, 34, 45, 51, 53, 54, 85, 89, 90, 102, 106, 135, 153, 159, 170, 178, 255, 265, 267, 270, 306, 318, 445, 459, 477, 510, 530, 534, 765, 795, 801, 890, 901, 918, 954, 1335, 1431, 1513, 1530, 1590, 1602, 1802, 2295, 2385, 2403, 2670, 2703, 2862, 3026, 4005, 4505, 4539, 4590, 4717, 4770, 4806, 5406, 7155, 7565, 8010, 8109, 9010, 9078, 9434, 12015, 13515, 13617, 14151, 14310, 15130, 16218, 22695, 23585, 24030, 24327, 27030, 27234, 28302, 40545, 40851, 42453, 45390, 47170, 48654, 68085, 70755, 80189, 81090, 81702, 84906, 121635, 127359, 136170, 141510, 160378, 204255, 212265, 240567, 243270, 254718, 400945, 408510, 424530, 481134, 636795, 721701, 801890, 1202835, 1273590, 1443402, 2165103, 2405670, 3608505, 4330206, 7217010, 10825515, 21651030]

約数ペア:

[(1, 21651030), (2, 10825515), (3, 7217010), (5, 4330206), (6, 3608505), (9, 2405670), (10, 2165103), (15, 1443402), (17, 1273590), (18, 1202835), (27, 801890), (30, 721701), (34, 636795), (45, 481134), (51, 424530), (53, 408510), (54, 400945), (85, 254718), (89, 243270), (90, 240567), (102, 212265), (106, 204255), (135, 160378), (153, 141510), (159, 136170), (170, 127359), (178, 121635), (255, 84906), (265, 81702), (267, 81090), (270, 80189), (306, 70755), (318, 68085), (445, 48654), (459, 47170), (477, 45390), (510, 42453), (530, 40851), (534, 40545), (765, 28302), (795, 27234), (801, 27030), (890, 24327), (901, 24030), (918, 23585), (954, 22695), (1335, 16218), (1431, 15130), (1513, 14310), (1530, 14151), (1590, 13617), (1602, 13515), (1802, 12015), (2295, 9434), (2385, 9078), (2403, 9010), (2670, 8109), (2703, 8010), (2862, 7565), (3026, 7155), (4005, 5406), (4505, 4806), (4539, 4770), (4590, 4717)]