21766712

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{101}}^1$

素因数の和:228

約数の個数: 64

約数和(自身を含む): 47001600

約数和(自身を除く): 25234888

約数列:

[1, 2, 4, 8, 11, 22, 31, 44, 62, 79, 88, 101, 124, 158, 202, 248, 316, 341, 404, 632, 682, 808, 869, 1111, 1364, 1738, 2222, 2449, 2728, 3131, 3476, 4444, 4898, 6262, 6952, 7979, 8888, 9796, 12524, 15958, 19592, 25048, 26939, 31916, 34441, 53878, 63832, 68882, 87769, 107756, 137764, 175538, 215512, 247349, 275528, 351076, 494698, 702152, 989396, 1978792, 2720839, 5441678, 10883356, 21766712]

約数ペア:

[(1, 21766712), (2, 10883356), (4, 5441678), (8, 2720839), (11, 1978792), (22, 989396), (31, 702152), (44, 494698), (62, 351076), (79, 275528), (88, 247349), (101, 215512), (124, 175538), (158, 137764), (202, 107756), (248, 87769), (316, 68882), (341, 63832), (404, 53878), (632, 34441), (682, 31916), (808, 26939), (869, 25048), (1111, 19592), (1364, 15958), (1738, 12524), (2222, 9796), (2449, 8888), (2728, 7979), (3131, 6952), (3476, 6262), (4444, 4898)]