21001668736

素因数分解:

$2^7\times {\mathrm{23}}^1\times {\mathrm{7133719}}^1$

素因数の和:7133756

約数の個数: 32

約数和(自身を含む): 43658366400

約数和(自身を除く): 22656697664

約数列:

[1, 2, 4, 8, 16, 23, 32, 46, 64, 92, 128, 184, 368, 736, 1472, 2944, 7133719, 14267438, 28534876, 57069752, 114139504, 164075537, 228279008, 328151074, 456558016, 656302148, 913116032, 1312604296, 2625208592, 5250417184, 10500834368, 21001668736]

約数ペア:

[(1, 21001668736), (2, 10500834368), (4, 5250417184), (8, 2625208592), (16, 1312604296), (23, 913116032), (32, 656302148), (46, 456558016), (64, 328151074), (92, 228279008), (128, 164075537), (184, 114139504), (368, 57069752), (736, 28534876), (1472, 14267438), (2944, 7133719)]