20285928

素因数分解:

$2^3\times 3^2\times {\mathrm{13}}^1\times {\mathrm{21673}}^1$

素因数の和:21698

約数の個数: 48

約数和(自身を含む): 59170020

約数和(自身を除く): 38884092

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 18, 24, 26, 36, 39, 52, 72, 78, 104, 117, 156, 234, 312, 468, 936, 21673, 43346, 65019, 86692, 130038, 173384, 195057, 260076, 281749, 390114, 520152, 563498, 780228, 845247, 1126996, 1560456, 1690494, 2253992, 2535741, 3380988, 5071482, 6761976, 10142964, 20285928]

約数ペア:

[(1, 20285928), (2, 10142964), (3, 6761976), (4, 5071482), (6, 3380988), (8, 2535741), (9, 2253992), (12, 1690494), (13, 1560456), (18, 1126996), (24, 845247), (26, 780228), (36, 563498), (39, 520152), (52, 390114), (72, 281749), (78, 260076), (104, 195057), (117, 173384), (156, 130038), (234, 86692), (312, 65019), (468, 43346), (936, 21673)]