21559552

素因数分解:

$2^8\times 7^1\times {\mathrm{53}}^1\times {\mathrm{227}}^1$

素因数の和:303

約数の個数: 72

約数和(自身を含む): 50331456

約数和(自身を除く): 28771904

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 53, 56, 64, 106, 112, 128, 212, 224, 227, 256, 371, 424, 448, 454, 742, 848, 896, 908, 1484, 1589, 1696, 1792, 1816, 2968, 3178, 3392, 3632, 5936, 6356, 6784, 7264, 11872, 12031, 12712, 13568, 14528, 23744, 24062, 25424, 29056, 47488, 48124, 50848, 58112, 84217, 94976, 96248, 101696, 168434, 192496, 203392, 336868, 384992, 406784, 673736, 769984, 1347472, 1539968, 2694944, 3079936, 5389888, 10779776, 21559552]

約数ペア:

[(1, 21559552), (2, 10779776), (4, 5389888), (7, 3079936), (8, 2694944), (14, 1539968), (16, 1347472), (28, 769984), (32, 673736), (53, 406784), (56, 384992), (64, 336868), (106, 203392), (112, 192496), (128, 168434), (212, 101696), (224, 96248), (227, 94976), (256, 84217), (371, 58112), (424, 50848), (448, 48124), (454, 47488), (742, 29056), (848, 25424), (896, 24062), (908, 23744), (1484, 14528), (1589, 13568), (1696, 12712), (1792, 12031), (1816, 11872), (2968, 7264), (3178, 6784), (3392, 6356), (3632, 5936)]