21313278

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{47}}^1\times {\mathrm{59}}^1\times {\mathrm{61}}^1$

素因数の和:182

約数の個数: 96

約数和(自身を含む): 55710720

約数和(自身を除く): 34397442

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 47, 59, 61, 63, 94, 118, 122, 126, 141, 177, 183, 282, 329, 354, 366, 413, 423, 427, 531, 549, 658, 826, 846, 854, 987, 1062, 1098, 1239, 1281, 1974, 2478, 2562, 2773, 2867, 2961, 3599, 3717, 3843, 5546, 5734, 5922, 7198, 7434, 7686, 8319, 8601, 10797, 16638, 17202, 19411, 20069, 21594, 24957, 25193, 25803, 32391, 38822, 40138, 49914, 50386, 51606, 58233, 60207, 64782, 75579, 116466, 120414, 151158, 169153, 174699, 180621, 226737, 338306, 349398, 361242, 453474, 507459, 1014918, 1184071, 1522377, 2368142, 3044754, 3552213, 7104426, 10656639, 21313278]

約数ペア:

[(1, 21313278), (2, 10656639), (3, 7104426), (6, 3552213), (7, 3044754), (9, 2368142), (14, 1522377), (18, 1184071), (21, 1014918), (42, 507459), (47, 453474), (59, 361242), (61, 349398), (63, 338306), (94, 226737), (118, 180621), (122, 174699), (126, 169153), (141, 151158), (177, 120414), (183, 116466), (282, 75579), (329, 64782), (354, 60207), (366, 58233), (413, 51606), (423, 50386), (427, 49914), (531, 40138), (549, 38822), (658, 32391), (826, 25803), (846, 25193), (854, 24957), (987, 21594), (1062, 20069), (1098, 19411), (1239, 17202), (1281, 16638), (1974, 10797), (2478, 8601), (2562, 8319), (2773, 7686), (2867, 7434), (2961, 7198), (3599, 5922), (3717, 5734), (3843, 5546)]