21209160

素因数分解:

$2^3\times 3^1\times 5^1\times 7^2\times {\mathrm{3607}}^1$

素因数の和:3635

約数の個数: 96

約数和(自身を含む): 74036160

約数和(自身を除く): 52827000

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 49, 56, 60, 70, 84, 98, 105, 120, 140, 147, 168, 196, 210, 245, 280, 294, 392, 420, 490, 588, 735, 840, 980, 1176, 1470, 1960, 2940, 3607, 5880, 7214, 10821, 14428, 18035, 21642, 25249, 28856, 36070, 43284, 50498, 54105, 72140, 75747, 86568, 100996, 108210, 126245, 144280, 151494, 176743, 201992, 216420, 252490, 302988, 353486, 378735, 432840, 504980, 530229, 605976, 706972, 757470, 883715, 1009960, 1060458, 1413944, 1514940, 1767430, 2120916, 2651145, 3029880, 3534860, 4241832, 5302290, 7069720, 10604580, 21209160]

約数ペア:

[(1, 21209160), (2, 10604580), (3, 7069720), (4, 5302290), (5, 4241832), (6, 3534860), (7, 3029880), (8, 2651145), (10, 2120916), (12, 1767430), (14, 1514940), (15, 1413944), (20, 1060458), (21, 1009960), (24, 883715), (28, 757470), (30, 706972), (35, 605976), (40, 530229), (42, 504980), (49, 432840), (56, 378735), (60, 353486), (70, 302988), (84, 252490), (98, 216420), (105, 201992), (120, 176743), (140, 151494), (147, 144280), (168, 126245), (196, 108210), (210, 100996), (245, 86568), (280, 75747), (294, 72140), (392, 54105), (420, 50498), (490, 43284), (588, 36070), (735, 28856), (840, 25249), (980, 21642), (1176, 18035), (1470, 14428), (1960, 10821), (2940, 7214), (3607, 5880)]