18972996

素因数分解:

$2^2\times 3^1\times 7^2\times {\mathrm{41}}^1\times {\mathrm{787}}^1$

素因数の和:849

約数の個数: 72

約数和(自身を含む): 52821216

約数和(自身を除く): 33848220

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 41, 42, 49, 82, 84, 98, 123, 147, 164, 196, 246, 287, 294, 492, 574, 588, 787, 861, 1148, 1574, 1722, 2009, 2361, 3148, 3444, 4018, 4722, 5509, 6027, 8036, 9444, 11018, 12054, 16527, 22036, 24108, 32267, 33054, 38563, 64534, 66108, 77126, 96801, 115689, 129068, 154252, 193602, 225869, 231378, 387204, 451738, 462756, 677607, 903476, 1355214, 1581083, 2710428, 3162166, 4743249, 6324332, 9486498, 18972996]

約数ペア:

[(1, 18972996), (2, 9486498), (3, 6324332), (4, 4743249), (6, 3162166), (7, 2710428), (12, 1581083), (14, 1355214), (21, 903476), (28, 677607), (41, 462756), (42, 451738), (49, 387204), (82, 231378), (84, 225869), (98, 193602), (123, 154252), (147, 129068), (164, 115689), (196, 96801), (246, 77126), (287, 66108), (294, 64534), (492, 38563), (574, 33054), (588, 32267), (787, 24108), (861, 22036), (1148, 16527), (1574, 12054), (1722, 11018), (2009, 9444), (2361, 8036), (3148, 6027), (3444, 5509), (4018, 4722)]