21972314

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{181}}^1$

素因数の和:255

約数の個数: 64

約数和(自身を含む): 44029440

約数和(自身を除く): 22057126

約数列:

[1, 2, 7, 13, 14, 23, 26, 29, 46, 58, 91, 161, 181, 182, 203, 299, 322, 362, 377, 406, 598, 667, 754, 1267, 1334, 2093, 2353, 2534, 2639, 4163, 4186, 4669, 4706, 5249, 5278, 8326, 8671, 9338, 10498, 16471, 17342, 29141, 32942, 36743, 54119, 58282, 60697, 68237, 73486, 108238, 120727, 121394, 136474, 241454, 378833, 477659, 757666, 845089, 955318, 1569451, 1690178, 3138902, 10986157, 21972314]

約数ペア:

[(1, 21972314), (2, 10986157), (7, 3138902), (13, 1690178), (14, 1569451), (23, 955318), (26, 845089), (29, 757666), (46, 477659), (58, 378833), (91, 241454), (161, 136474), (181, 121394), (182, 120727), (203, 108238), (299, 73486), (322, 68237), (362, 60697), (377, 58282), (406, 54119), (598, 36743), (667, 32942), (754, 29141), (1267, 17342), (1334, 16471), (2093, 10498), (2353, 9338), (2534, 8671), (2639, 8326), (4163, 5278), (4186, 5249), (4669, 4706)]