21210310

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{61}}^1\times {\mathrm{109}}^1$

素因数の和:217

約数の個数: 64

約数和(自身を含む): 44193600

約数和(自身を除く): 22983290

約数列:

[1, 2, 5, 10, 11, 22, 29, 55, 58, 61, 109, 110, 122, 145, 218, 290, 305, 319, 545, 610, 638, 671, 1090, 1199, 1342, 1595, 1769, 2398, 3161, 3190, 3355, 3538, 5995, 6322, 6649, 6710, 8845, 11990, 13298, 15805, 17690, 19459, 31610, 33245, 34771, 38918, 66490, 69542, 73139, 97295, 146278, 173855, 192821, 194590, 347710, 365695, 385642, 731390, 964105, 1928210, 2121031, 4242062, 10605155, 21210310]

約数ペア:

[(1, 21210310), (2, 10605155), (5, 4242062), (10, 2121031), (11, 1928210), (22, 964105), (29, 731390), (55, 385642), (58, 365695), (61, 347710), (109, 194590), (110, 192821), (122, 173855), (145, 146278), (218, 97295), (290, 73139), (305, 69542), (319, 66490), (545, 38918), (610, 34771), (638, 33245), (671, 31610), (1090, 19459), (1199, 17690), (1342, 15805), (1595, 13298), (1769, 11990), (2398, 8845), (3161, 6710), (3190, 6649), (3355, 6322), (3538, 5995)]