19986894

素因数分解:

$2^1\times 3^2\times {\mathrm{61}}^1\times {\mathrm{109}}^1\times {\mathrm{167}}^1$

素因数の和:345

約数の個数: 48

約数和(自身を含む): 44684640

約数和(自身を除く): 24697746

約数列:

[1, 2, 3, 6, 9, 18, 61, 109, 122, 167, 183, 218, 327, 334, 366, 501, 549, 654, 981, 1002, 1098, 1503, 1962, 3006, 6649, 10187, 13298, 18203, 19947, 20374, 30561, 36406, 39894, 54609, 59841, 61122, 91683, 109218, 119682, 163827, 183366, 327654, 1110383, 2220766, 3331149, 6662298, 9993447, 19986894]

約数ペア:

[(1, 19986894), (2, 9993447), (3, 6662298), (6, 3331149), (9, 2220766), (18, 1110383), (61, 327654), (109, 183366), (122, 163827), (167, 119682), (183, 109218), (218, 91683), (327, 61122), (334, 59841), (366, 54609), (501, 39894), (549, 36406), (654, 30561), (981, 20374), (1002, 19947), (1098, 18203), (1503, 13298), (1962, 10187), (3006, 6649)]