21515160

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{4373}}^1$

素因数の和:4428

約数の個数: 64

約数和(自身を含む): 66134880

約数和(自身を除く): 44619720

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 41, 60, 82, 120, 123, 164, 205, 246, 328, 410, 492, 615, 820, 984, 1230, 1640, 2460, 4373, 4920, 8746, 13119, 17492, 21865, 26238, 34984, 43730, 52476, 65595, 87460, 104952, 131190, 174920, 179293, 262380, 358586, 524760, 537879, 717172, 896465, 1075758, 1434344, 1792930, 2151516, 2689395, 3585860, 4303032, 5378790, 7171720, 10757580, 21515160]

約数ペア:

[(1, 21515160), (2, 10757580), (3, 7171720), (4, 5378790), (5, 4303032), (6, 3585860), (8, 2689395), (10, 2151516), (12, 1792930), (15, 1434344), (20, 1075758), (24, 896465), (30, 717172), (40, 537879), (41, 524760), (60, 358586), (82, 262380), (120, 179293), (123, 174920), (164, 131190), (205, 104952), (246, 87460), (328, 65595), (410, 52476), (492, 43730), (615, 34984), (820, 26238), (984, 21865), (1230, 17492), (1640, 13119), (2460, 8746), (4373, 4920)]