20868354

素因数分解:

$2^1\times 3^7\times {\mathrm{13}}^1\times {\mathrm{367}}^1$

素因数の和:403

約数の個数: 64

約数和(自身を含む): 50695680

約数和(自身を除く): 29827326

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 27, 39, 54, 78, 81, 117, 162, 234, 243, 351, 367, 486, 702, 729, 734, 1053, 1101, 1458, 2106, 2187, 2202, 3159, 3303, 4374, 4771, 6318, 6606, 9477, 9542, 9909, 14313, 18954, 19818, 28431, 28626, 29727, 42939, 56862, 59454, 85878, 89181, 128817, 178362, 257634, 267543, 386451, 535086, 772902, 802629, 1159353, 1605258, 2318706, 3478059, 6956118, 10434177, 20868354]

約数ペア:

[(1, 20868354), (2, 10434177), (3, 6956118), (6, 3478059), (9, 2318706), (13, 1605258), (18, 1159353), (26, 802629), (27, 772902), (39, 535086), (54, 386451), (78, 267543), (81, 257634), (117, 178362), (162, 128817), (234, 89181), (243, 85878), (351, 59454), (367, 56862), (486, 42939), (702, 29727), (729, 28626), (734, 28431), (1053, 19818), (1101, 18954), (1458, 14313), (2106, 9909), (2187, 9542), (2202, 9477), (3159, 6606), (3303, 6318), (4374, 4771)]