20869872

素因数分解:

$2^4\times 3^1\times {\mathrm{131}}^1\times {\mathrm{3319}}^1$

素因数の和:3461

約数の個数: 40

約数和(自身を含む): 54341760

約数和(自身を除く): 33471888

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 48, 131, 262, 393, 524, 786, 1048, 1572, 2096, 3144, 3319, 6288, 6638, 9957, 13276, 19914, 26552, 39828, 53104, 79656, 159312, 434789, 869578, 1304367, 1739156, 2608734, 3478312, 5217468, 6956624, 10434936, 20869872]

約数ペア:

[(1, 20869872), (2, 10434936), (3, 6956624), (4, 5217468), (6, 3478312), (8, 2608734), (12, 1739156), (16, 1304367), (24, 869578), (48, 434789), (131, 159312), (262, 79656), (393, 53104), (524, 39828), (786, 26552), (1048, 19914), (1572, 13276), (2096, 9957), (3144, 6638), (3319, 6288)]