20997144

素因数分解:

$2^3\times 3^5\times 7^1\times {\mathrm{1543}}^1$

素因数の和:1571

約数の個数: 96

約数和(自身を含む): 67441920

約数和(自身を除く): 46444776

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 18, 21, 24, 27, 28, 36, 42, 54, 56, 63, 72, 81, 84, 108, 126, 162, 168, 189, 216, 243, 252, 324, 378, 486, 504, 567, 648, 756, 972, 1134, 1512, 1543, 1701, 1944, 2268, 3086, 3402, 4536, 4629, 6172, 6804, 9258, 10801, 12344, 13608, 13887, 18516, 21602, 27774, 32403, 37032, 41661, 43204, 55548, 64806, 83322, 86408, 97209, 111096, 124983, 129612, 166644, 194418, 249966, 259224, 291627, 333288, 374949, 388836, 499932, 583254, 749898, 777672, 874881, 999864, 1166508, 1499796, 1749762, 2333016, 2624643, 2999592, 3499524, 5249286, 6999048, 10498572, 20997144]

約数ペア:

[(1, 20997144), (2, 10498572), (3, 6999048), (4, 5249286), (6, 3499524), (7, 2999592), (8, 2624643), (9, 2333016), (12, 1749762), (14, 1499796), (18, 1166508), (21, 999864), (24, 874881), (27, 777672), (28, 749898), (36, 583254), (42, 499932), (54, 388836), (56, 374949), (63, 333288), (72, 291627), (81, 259224), (84, 249966), (108, 194418), (126, 166644), (162, 129612), (168, 124983), (189, 111096), (216, 97209), (243, 86408), (252, 83322), (324, 64806), (378, 55548), (486, 43204), (504, 41661), (567, 37032), (648, 32403), (756, 27774), (972, 21602), (1134, 18516), (1512, 13887), (1543, 13608), (1701, 12344), (1944, 10801), (2268, 9258), (3086, 6804), (3402, 6172), (4536, 4629)]