221353888

素因数分解:

$2^5\times 7^1\times {\mathrm{31}}^1\times {\mathrm{127}}^1\times {\mathrm{251}}^1$

素因数の和:426

約数の個数: 96

約数和(自身を含む): 520224768

約数和(自身を除く): 298870880

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 31, 32, 56, 62, 112, 124, 127, 217, 224, 248, 251, 254, 434, 496, 502, 508, 868, 889, 992, 1004, 1016, 1736, 1757, 1778, 2008, 2032, 3472, 3514, 3556, 3937, 4016, 4064, 6944, 7028, 7112, 7781, 7874, 8032, 14056, 14224, 15562, 15748, 27559, 28112, 28448, 31124, 31496, 31877, 54467, 55118, 56224, 62248, 62992, 63754, 108934, 110236, 124496, 125984, 127508, 217868, 220472, 223139, 248992, 255016, 435736, 440944, 446278, 510032, 871472, 881888, 892556, 988187, 1020064, 1742944, 1785112, 1976374, 3570224, 3952748, 6917309, 7140448, 7905496, 13834618, 15810992, 27669236, 31621984, 55338472, 110676944, 221353888]

約数ペア:

[(1, 221353888), (2, 110676944), (4, 55338472), (7, 31621984), (8, 27669236), (14, 15810992), (16, 13834618), (28, 7905496), (31, 7140448), (32, 6917309), (56, 3952748), (62, 3570224), (112, 1976374), (124, 1785112), (127, 1742944), (217, 1020064), (224, 988187), (248, 892556), (251, 881888), (254, 871472), (434, 510032), (496, 446278), (502, 440944), (508, 435736), (868, 255016), (889, 248992), (992, 223139), (1004, 220472), (1016, 217868), (1736, 127508), (1757, 125984), (1778, 124496), (2008, 110236), (2032, 108934), (3472, 63754), (3514, 62992), (3556, 62248), (3937, 56224), (4016, 55118), (4064, 54467), (6944, 31877), (7028, 31496), (7112, 31124), (7781, 28448), (7874, 28112), (8032, 27559), (14056, 15748), (14224, 15562)]