21472920

素因数分解:

$2^3\times 3^2\times 5^1\times 7^1\times {\mathrm{8521}}^1$

素因数の和:8545

約数の個数: 96

約数和(自身を含む): 79765920

約数和(自身を除く): 58293000

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 28, 30, 35, 36, 40, 42, 45, 56, 60, 63, 70, 72, 84, 90, 105, 120, 126, 140, 168, 180, 210, 252, 280, 315, 360, 420, 504, 630, 840, 1260, 2520, 8521, 17042, 25563, 34084, 42605, 51126, 59647, 68168, 76689, 85210, 102252, 119294, 127815, 153378, 170420, 178941, 204504, 238588, 255630, 298235, 306756, 340840, 357882, 383445, 477176, 511260, 536823, 596470, 613512, 715764, 766890, 894705, 1022520, 1073646, 1192940, 1431528, 1533780, 1789410, 2147292, 2385880, 2684115, 3067560, 3578820, 4294584, 5368230, 7157640, 10736460, 21472920]

約数ペア:

[(1, 21472920), (2, 10736460), (3, 7157640), (4, 5368230), (5, 4294584), (6, 3578820), (7, 3067560), (8, 2684115), (9, 2385880), (10, 2147292), (12, 1789410), (14, 1533780), (15, 1431528), (18, 1192940), (20, 1073646), (21, 1022520), (24, 894705), (28, 766890), (30, 715764), (35, 613512), (36, 596470), (40, 536823), (42, 511260), (45, 477176), (56, 383445), (60, 357882), (63, 340840), (70, 306756), (72, 298235), (84, 255630), (90, 238588), (105, 204504), (120, 178941), (126, 170420), (140, 153378), (168, 127815), (180, 119294), (210, 102252), (252, 85210), (280, 76689), (315, 68168), (360, 59647), (420, 51126), (504, 42605), (630, 34084), (840, 25563), (1260, 17042), (2520, 8521)]