21747240

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{193}}^1\times {\mathrm{313}}^1$

素因数の和:523

約数の個数: 96

約数和(自身を含む): 71271720

約数和(自身を除く): 49524480

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 120, 180, 193, 313, 360, 386, 579, 626, 772, 939, 965, 1158, 1252, 1544, 1565, 1737, 1878, 1930, 2316, 2504, 2817, 2895, 3130, 3474, 3756, 3860, 4632, 4695, 5634, 5790, 6260, 6948, 7512, 7720, 8685, 9390, 11268, 11580, 12520, 13896, 14085, 17370, 18780, 22536, 23160, 28170, 34740, 37560, 56340, 60409, 69480, 112680, 120818, 181227, 241636, 302045, 362454, 483272, 543681, 604090, 724908, 906135, 1087362, 1208180, 1449816, 1812270, 2174724, 2416360, 2718405, 3624540, 4349448, 5436810, 7249080, 10873620, 21747240]

約数ペア:

[(1, 21747240), (2, 10873620), (3, 7249080), (4, 5436810), (5, 4349448), (6, 3624540), (8, 2718405), (9, 2416360), (10, 2174724), (12, 1812270), (15, 1449816), (18, 1208180), (20, 1087362), (24, 906135), (30, 724908), (36, 604090), (40, 543681), (45, 483272), (60, 362454), (72, 302045), (90, 241636), (120, 181227), (180, 120818), (193, 112680), (313, 69480), (360, 60409), (386, 56340), (579, 37560), (626, 34740), (772, 28170), (939, 23160), (965, 22536), (1158, 18780), (1252, 17370), (1544, 14085), (1565, 13896), (1737, 12520), (1878, 11580), (1930, 11268), (2316, 9390), (2504, 8685), (2817, 7720), (2895, 7512), (3130, 6948), (3474, 6260), (3756, 5790), (3860, 5634), (4632, 4695)]