20913606

素因数分解:

$2^1\times 3^3\times 7^1\times {\mathrm{61}}^1\times {\mathrm{907}}^1$

素因数の和:986

約数の個数: 64

約数和(自身を含む): 54044160

約数和(自身を除く): 33130554

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 54, 61, 63, 122, 126, 183, 189, 366, 378, 427, 549, 854, 907, 1098, 1281, 1647, 1814, 2562, 2721, 3294, 3843, 5442, 6349, 7686, 8163, 11529, 12698, 16326, 19047, 23058, 24489, 38094, 48978, 55327, 57141, 110654, 114282, 165981, 171423, 331962, 342846, 387289, 497943, 774578, 995886, 1161867, 1493829, 2323734, 2987658, 3485601, 6971202, 10456803, 20913606]

約数ペア:

[(1, 20913606), (2, 10456803), (3, 6971202), (6, 3485601), (7, 2987658), (9, 2323734), (14, 1493829), (18, 1161867), (21, 995886), (27, 774578), (42, 497943), (54, 387289), (61, 342846), (63, 331962), (122, 171423), (126, 165981), (183, 114282), (189, 110654), (366, 57141), (378, 55327), (427, 48978), (549, 38094), (854, 24489), (907, 23058), (1098, 19047), (1281, 16326), (1647, 12698), (1814, 11529), (2562, 8163), (2721, 7686), (3294, 6349), (3843, 5442)]