21861780

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{127}}^1\times {\mathrm{151}}^1$

素因数の和:309

約数の個数: 96

約数和(自身を含む): 65372160

約数和(自身を除く): 43510380

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 19, 20, 30, 38, 57, 60, 76, 95, 114, 127, 151, 190, 228, 254, 285, 302, 380, 381, 453, 508, 570, 604, 635, 755, 762, 906, 1140, 1270, 1510, 1524, 1812, 1905, 2265, 2413, 2540, 2869, 3020, 3810, 4530, 4826, 5738, 7239, 7620, 8607, 9060, 9652, 11476, 12065, 14345, 14478, 17214, 19177, 24130, 28690, 28956, 34428, 36195, 38354, 43035, 48260, 57380, 57531, 72390, 76708, 86070, 95885, 115062, 144780, 172140, 191770, 230124, 287655, 364363, 383540, 575310, 728726, 1093089, 1150620, 1457452, 1821815, 2186178, 3643630, 4372356, 5465445, 7287260, 10930890, 21861780]

約数ペア:

[(1, 21861780), (2, 10930890), (3, 7287260), (4, 5465445), (5, 4372356), (6, 3643630), (10, 2186178), (12, 1821815), (15, 1457452), (19, 1150620), (20, 1093089), (30, 728726), (38, 575310), (57, 383540), (60, 364363), (76, 287655), (95, 230124), (114, 191770), (127, 172140), (151, 144780), (190, 115062), (228, 95885), (254, 86070), (285, 76708), (302, 72390), (380, 57531), (381, 57380), (453, 48260), (508, 43035), (570, 38354), (604, 36195), (635, 34428), (755, 28956), (762, 28690), (906, 24130), (1140, 19177), (1270, 17214), (1510, 14478), (1524, 14345), (1812, 12065), (1905, 11476), (2265, 9652), (2413, 9060), (2540, 8607), (2869, 7620), (3020, 7239), (3810, 5738), (4530, 4826)]