21503850

素因数分解:

$2^1\times 3^1\times 5^2\times {\mathrm{23}}^2\times {\mathrm{271}}^1$

素因数の和:332

約数の個数: 72

約数和(自身を含む): 55954752

約数和(自身を除く): 34450902

約数列:

[1, 2, 3, 5, 6, 10, 15, 23, 25, 30, 46, 50, 69, 75, 115, 138, 150, 230, 271, 345, 529, 542, 575, 690, 813, 1058, 1150, 1355, 1587, 1626, 1725, 2645, 2710, 3174, 3450, 4065, 5290, 6233, 6775, 7935, 8130, 12466, 13225, 13550, 15870, 18699, 20325, 26450, 31165, 37398, 39675, 40650, 62330, 79350, 93495, 143359, 155825, 186990, 286718, 311650, 430077, 467475, 716795, 860154, 934950, 1433590, 2150385, 3583975, 4300770, 7167950, 10751925, 21503850]

約数ペア:

[(1, 21503850), (2, 10751925), (3, 7167950), (5, 4300770), (6, 3583975), (10, 2150385), (15, 1433590), (23, 934950), (25, 860154), (30, 716795), (46, 467475), (50, 430077), (69, 311650), (75, 286718), (115, 186990), (138, 155825), (150, 143359), (230, 93495), (271, 79350), (345, 62330), (529, 40650), (542, 39675), (575, 37398), (690, 31165), (813, 26450), (1058, 20325), (1150, 18699), (1355, 15870), (1587, 13550), (1626, 13225), (1725, 12466), (2645, 8130), (2710, 7935), (3174, 6775), (3450, 6233), (4065, 5290)]