21427616

素因数分解:

$2^5\times 7^1\times {\mathrm{17}}^2\times {\mathrm{331}}^1$

素因数の和:382

約数の個数: 72

約数和(自身を含む): 51369696

約数和(自身を除く): 29942080

約数列:

[1, 2, 4, 7, 8, 14, 16, 17, 28, 32, 34, 56, 68, 112, 119, 136, 224, 238, 272, 289, 331, 476, 544, 578, 662, 952, 1156, 1324, 1904, 2023, 2312, 2317, 2648, 3808, 4046, 4624, 4634, 5296, 5627, 8092, 9248, 9268, 10592, 11254, 16184, 18536, 22508, 32368, 37072, 39389, 45016, 64736, 74144, 78778, 90032, 95659, 157556, 180064, 191318, 315112, 382636, 630224, 669613, 765272, 1260448, 1339226, 1530544, 2678452, 3061088, 5356904, 10713808, 21427616]

約数ペア:

[(1, 21427616), (2, 10713808), (4, 5356904), (7, 3061088), (8, 2678452), (14, 1530544), (16, 1339226), (17, 1260448), (28, 765272), (32, 669613), (34, 630224), (56, 382636), (68, 315112), (112, 191318), (119, 180064), (136, 157556), (224, 95659), (238, 90032), (272, 78778), (289, 74144), (331, 64736), (476, 45016), (544, 39389), (578, 37072), (662, 32368), (952, 22508), (1156, 18536), (1324, 16184), (1904, 11254), (2023, 10592), (2312, 9268), (2317, 9248), (2648, 8092), (3808, 5627), (4046, 5296), (4624, 4634)]