21805432

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{37}}^2\times {\mathrm{181}}^1$

素因数の和:272

約数の個数: 48

約数和(自身を含む): 46093320

約数和(自身を除く): 24287888

約数列:

[1, 2, 4, 8, 11, 22, 37, 44, 74, 88, 148, 181, 296, 362, 407, 724, 814, 1369, 1448, 1628, 1991, 2738, 3256, 3982, 5476, 6697, 7964, 10952, 13394, 15059, 15928, 26788, 30118, 53576, 60236, 73667, 120472, 147334, 247789, 294668, 495578, 589336, 991156, 1982312, 2725679, 5451358, 10902716, 21805432]

約数ペア:

[(1, 21805432), (2, 10902716), (4, 5451358), (8, 2725679), (11, 1982312), (22, 991156), (37, 589336), (44, 495578), (74, 294668), (88, 247789), (148, 147334), (181, 120472), (296, 73667), (362, 60236), (407, 53576), (724, 30118), (814, 26788), (1369, 15928), (1448, 15059), (1628, 13394), (1991, 10952), (2738, 7964), (3256, 6697), (3982, 5476)]