20868456

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{4007}}^1$

素因数の和:4054

約数の個数: 64

約数和(自身を含む): 61562880

約数和(自身を除く): 40694424

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 31, 42, 56, 62, 84, 93, 124, 168, 186, 217, 248, 372, 434, 651, 744, 868, 1302, 1736, 2604, 4007, 5208, 8014, 12021, 16028, 24042, 28049, 32056, 48084, 56098, 84147, 96168, 112196, 124217, 168294, 224392, 248434, 336588, 372651, 496868, 673176, 745302, 869519, 993736, 1490604, 1739038, 2608557, 2981208, 3478076, 5217114, 6956152, 10434228, 20868456]

約数ペア:

[(1, 20868456), (2, 10434228), (3, 6956152), (4, 5217114), (6, 3478076), (7, 2981208), (8, 2608557), (12, 1739038), (14, 1490604), (21, 993736), (24, 869519), (28, 745302), (31, 673176), (42, 496868), (56, 372651), (62, 336588), (84, 248434), (93, 224392), (124, 168294), (168, 124217), (186, 112196), (217, 96168), (248, 84147), (372, 56098), (434, 48084), (651, 32056), (744, 28049), (868, 24042), (1302, 16028), (1736, 12021), (2604, 8014), (4007, 5208)]