20121947776

素因数分解:

$2^7\times 7^1\times {\mathrm{53}}^1\times {\mathrm{423727}}^1$

素因数の和:423801

約数の個数: 64

約数和(自身を含む): 46677876480

約数和(自身を除く): 26555928704

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 53, 56, 64, 106, 112, 128, 212, 224, 371, 424, 448, 742, 848, 896, 1484, 1696, 2968, 3392, 5936, 6784, 11872, 23744, 47488, 423727, 847454, 1694908, 2966089, 3389816, 5932178, 6779632, 11864356, 13559264, 22457531, 23728712, 27118528, 44915062, 47457424, 54237056, 89830124, 94914848, 157202717, 179660248, 189829696, 314405434, 359320496, 379659392, 628810868, 718640992, 1257621736, 1437281984, 2515243472, 2874563968, 5030486944, 10060973888, 20121947776]

約数ペア:

[(1, 20121947776), (2, 10060973888), (4, 5030486944), (7, 2874563968), (8, 2515243472), (14, 1437281984), (16, 1257621736), (28, 718640992), (32, 628810868), (53, 379659392), (56, 359320496), (64, 314405434), (106, 189829696), (112, 179660248), (128, 157202717), (212, 94914848), (224, 89830124), (371, 54237056), (424, 47457424), (448, 44915062), (742, 27118528), (848, 23728712), (896, 22457531), (1484, 13559264), (1696, 11864356), (2968, 6779632), (3392, 5932178), (5936, 3389816), (6784, 2966089), (11872, 1694908), (23744, 847454), (47488, 423727)]