20989224

素因数分解:

$2^3\times 3^2\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{229}}^1$

素因数の和:327

約数の個数: 96

約数和(自身を含む): 60996000

約数和(自身を除く): 40006776

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 19, 24, 36, 38, 57, 67, 72, 76, 114, 134, 152, 171, 201, 228, 229, 268, 342, 402, 456, 458, 536, 603, 684, 687, 804, 916, 1206, 1273, 1368, 1374, 1608, 1832, 2061, 2412, 2546, 2748, 3819, 4122, 4351, 4824, 5092, 5496, 7638, 8244, 8702, 10184, 11457, 13053, 15276, 15343, 16488, 17404, 22914, 26106, 30552, 30686, 34808, 39159, 45828, 46029, 52212, 61372, 78318, 91656, 92058, 104424, 122744, 138087, 156636, 184116, 276174, 291517, 313272, 368232, 552348, 583034, 874551, 1104696, 1166068, 1749102, 2332136, 2623653, 3498204, 5247306, 6996408, 10494612, 20989224]

約数ペア:

[(1, 20989224), (2, 10494612), (3, 6996408), (4, 5247306), (6, 3498204), (8, 2623653), (9, 2332136), (12, 1749102), (18, 1166068), (19, 1104696), (24, 874551), (36, 583034), (38, 552348), (57, 368232), (67, 313272), (72, 291517), (76, 276174), (114, 184116), (134, 156636), (152, 138087), (171, 122744), (201, 104424), (228, 92058), (229, 91656), (268, 78318), (342, 61372), (402, 52212), (456, 46029), (458, 45828), (536, 39159), (603, 34808), (684, 30686), (687, 30552), (804, 26106), (916, 22914), (1206, 17404), (1273, 16488), (1368, 15343), (1374, 15276), (1608, 13053), (1832, 11457), (2061, 10184), (2412, 8702), (2546, 8244), (2748, 7638), (3819, 5496), (4122, 5092), (4351, 4824)]