19979532

素因数分解:

$2^2\times 3^2\times {\mathrm{137}}^1\times {\mathrm{4051}}^1$

素因数の和:4198

約数の個数: 36

約数和(自身を含む): 50885016

約数和(自身を除く): 30905484

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 137, 274, 411, 548, 822, 1233, 1644, 2466, 4051, 4932, 8102, 12153, 16204, 24306, 36459, 48612, 72918, 145836, 554987, 1109974, 1664961, 2219948, 3329922, 4994883, 6659844, 9989766, 19979532]

約数ペア:

[(1, 19979532), (2, 9989766), (3, 6659844), (4, 4994883), (6, 3329922), (9, 2219948), (12, 1664961), (18, 1109974), (36, 554987), (137, 145836), (274, 72918), (411, 48612), (548, 36459), (822, 24306), (1233, 16204), (1644, 12153), (2466, 8102), (4051, 4932)]