21413520

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{29741}}^1$

素因数の和:29760

約数の個数: 60

約数和(自身を含む): 71916156

約数和(自身を除く): 50502636

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 180, 240, 360, 720, 29741, 59482, 89223, 118964, 148705, 178446, 237928, 267669, 297410, 356892, 446115, 475856, 535338, 594820, 713784, 892230, 1070676, 1189640, 1338345, 1427568, 1784460, 2141352, 2379280, 2676690, 3568920, 4282704, 5353380, 7137840, 10706760, 21413520]

約数ペア:

[(1, 21413520), (2, 10706760), (3, 7137840), (4, 5353380), (5, 4282704), (6, 3568920), (8, 2676690), (9, 2379280), (10, 2141352), (12, 1784460), (15, 1427568), (16, 1338345), (18, 1189640), (20, 1070676), (24, 892230), (30, 713784), (36, 594820), (40, 535338), (45, 475856), (48, 446115), (60, 356892), (72, 297410), (80, 267669), (90, 237928), (120, 178446), (144, 148705), (180, 118964), (240, 89223), (360, 59482), (720, 29741)]