20649174

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{641}}^1$

素因数の和:725

約数の個数: 64

約数和(自身を含む): 51770880

約数和(自身を除く): 31121706

約数列:

[1, 2, 3, 6, 7, 13, 14, 21, 26, 39, 42, 59, 78, 91, 118, 177, 182, 273, 354, 413, 546, 641, 767, 826, 1239, 1282, 1534, 1923, 2301, 2478, 3846, 4487, 4602, 5369, 8333, 8974, 10738, 13461, 16107, 16666, 24999, 26922, 32214, 37819, 49998, 58331, 75638, 113457, 116662, 174993, 226914, 264733, 349986, 491647, 529466, 794199, 983294, 1474941, 1588398, 2949882, 3441529, 6883058, 10324587, 20649174]

約数ペア:

[(1, 20649174), (2, 10324587), (3, 6883058), (6, 3441529), (7, 2949882), (13, 1588398), (14, 1474941), (21, 983294), (26, 794199), (39, 529466), (42, 491647), (59, 349986), (78, 264733), (91, 226914), (118, 174993), (177, 116662), (182, 113457), (273, 75638), (354, 58331), (413, 49998), (546, 37819), (641, 32214), (767, 26922), (826, 24999), (1239, 16666), (1282, 16107), (1534, 13461), (1923, 10738), (2301, 8974), (2478, 8333), (3846, 5369), (4487, 4602)]