21528052

素因数分解:

$2^2\times 7^3\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1$

素因数の和:126

約数の個数: 96

約数和(自身を含む): 50803200

約数和(自身を除く): 29275148

約数列:

[1, 2, 4, 7, 13, 14, 17, 26, 28, 34, 49, 52, 68, 71, 91, 98, 119, 142, 182, 196, 221, 238, 284, 343, 364, 442, 476, 497, 637, 686, 833, 884, 923, 994, 1207, 1274, 1372, 1547, 1666, 1846, 1988, 2414, 2548, 3094, 3332, 3479, 3692, 4459, 4828, 5831, 6188, 6461, 6958, 8449, 8918, 10829, 11662, 12922, 13916, 15691, 16898, 17836, 21658, 23324, 24353, 25844, 31382, 33796, 43316, 45227, 48706, 59143, 62764, 75803, 90454, 97412, 109837, 118286, 151606, 180908, 219674, 236572, 303212, 316589, 414001, 439348, 633178, 768859, 828002, 1266356, 1537718, 1656004, 3075436, 5382013, 10764026, 21528052]

約数ペア:

[(1, 21528052), (2, 10764026), (4, 5382013), (7, 3075436), (13, 1656004), (14, 1537718), (17, 1266356), (26, 828002), (28, 768859), (34, 633178), (49, 439348), (52, 414001), (68, 316589), (71, 303212), (91, 236572), (98, 219674), (119, 180908), (142, 151606), (182, 118286), (196, 109837), (221, 97412), (238, 90454), (284, 75803), (343, 62764), (364, 59143), (442, 48706), (476, 45227), (497, 43316), (637, 33796), (686, 31382), (833, 25844), (884, 24353), (923, 23324), (994, 21658), (1207, 17836), (1274, 16898), (1372, 15691), (1547, 13916), (1666, 12922), (1846, 11662), (1988, 10829), (2414, 8918), (2548, 8449), (3094, 6958), (3332, 6461), (3479, 6188), (3692, 5831), (4459, 4828)]