21993062

素因数分解:

$2^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{283}}^1$

素因数の和:373

約数の個数: 48

約数和(自身を含む): 42153552

約数和(自身を除く): 20160490

約数列:

[1, 2, 7, 13, 14, 26, 49, 61, 91, 98, 122, 182, 283, 427, 566, 637, 793, 854, 1274, 1586, 1981, 2989, 3679, 3962, 5551, 5978, 7358, 11102, 13867, 17263, 25753, 27734, 34526, 38857, 51506, 77714, 120841, 180271, 224419, 241682, 360542, 448838, 845887, 1570933, 1691774, 3141866, 10996531, 21993062]

約数ペア:

[(1, 21993062), (2, 10996531), (7, 3141866), (13, 1691774), (14, 1570933), (26, 845887), (49, 448838), (61, 360542), (91, 241682), (98, 224419), (122, 180271), (182, 120841), (283, 77714), (427, 51506), (566, 38857), (637, 34526), (793, 27734), (854, 25753), (1274, 17263), (1586, 13867), (1981, 11102), (2989, 7358), (3679, 5978), (3962, 5551)]