21489291272

素因数分解:

$2^3\times {\mathrm{37}}^1\times {\mathrm{3067}}^1\times {\mathrm{23671}}^1$

素因数の和:26781

約数の個数: 32

約数和(自身を含む): 41396646720

約数和(自身を除く): 19907355448

約数列:

[1, 2, 4, 8, 37, 74, 148, 296, 3067, 6134, 12268, 23671, 24536, 47342, 94684, 113479, 189368, 226958, 453916, 875827, 907832, 1751654, 3503308, 7006616, 72598957, 145197914, 290395828, 580791656, 2686161409, 5372322818, 10744645636, 21489291272]

約数ペア:

[(1, 21489291272), (2, 10744645636), (4, 5372322818), (8, 2686161409), (37, 580791656), (74, 290395828), (148, 145197914), (296, 72598957), (3067, 7006616), (6134, 3503308), (12268, 1751654), (23671, 907832), (24536, 875827), (47342, 453916), (94684, 226958), (113479, 189368)]