21754012

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{103}}^1\times {\mathrm{397}}^1$

素因数の和:530

約数の個数: 48

約数和(自身を含む): 46359040

約数和(自身を除く): 24605028

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 76, 103, 133, 206, 266, 397, 412, 532, 721, 794, 1442, 1588, 1957, 2779, 2884, 3914, 5558, 7543, 7828, 11116, 13699, 15086, 27398, 30172, 40891, 52801, 54796, 81782, 105602, 163564, 211204, 286237, 572474, 776929, 1144948, 1553858, 3107716, 5438503, 10877006, 21754012]

約数ペア:

[(1, 21754012), (2, 10877006), (4, 5438503), (7, 3107716), (14, 1553858), (19, 1144948), (28, 776929), (38, 572474), (76, 286237), (103, 211204), (133, 163564), (206, 105602), (266, 81782), (397, 54796), (412, 52801), (532, 40891), (721, 30172), (794, 27398), (1442, 15086), (1588, 13699), (1957, 11116), (2779, 7828), (2884, 7543), (3914, 5558)]