21523068

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{223}}^1\times {\mathrm{383}}^1$

素因数の和:623

約数の個数: 72

約数和(自身を含む): 62619648

約数和(自身を除く): 41096580

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 223, 252, 383, 446, 669, 766, 892, 1149, 1338, 1532, 1561, 2007, 2298, 2676, 2681, 3122, 3447, 4014, 4596, 4683, 5362, 6244, 6894, 8028, 8043, 9366, 10724, 13788, 14049, 16086, 18732, 24129, 28098, 32172, 48258, 56196, 85409, 96516, 170818, 256227, 341636, 512454, 597863, 768681, 1024908, 1195726, 1537362, 1793589, 2391452, 3074724, 3587178, 5380767, 7174356, 10761534, 21523068]

約数ペア:

[(1, 21523068), (2, 10761534), (3, 7174356), (4, 5380767), (6, 3587178), (7, 3074724), (9, 2391452), (12, 1793589), (14, 1537362), (18, 1195726), (21, 1024908), (28, 768681), (36, 597863), (42, 512454), (63, 341636), (84, 256227), (126, 170818), (223, 96516), (252, 85409), (383, 56196), (446, 48258), (669, 32172), (766, 28098), (892, 24129), (1149, 18732), (1338, 16086), (1532, 14049), (1561, 13788), (2007, 10724), (2298, 9366), (2676, 8043), (2681, 8028), (3122, 6894), (3447, 6244), (4014, 5362), (4596, 4683)]