21168660

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{599}}^1$

素因数の和:661

約数の個数: 96

約数和(自身を含む): 64512000

約数和(自身を除く): 43343340

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 19, 20, 30, 31, 38, 57, 60, 62, 76, 93, 95, 114, 124, 155, 186, 190, 228, 285, 310, 372, 380, 465, 570, 589, 599, 620, 930, 1140, 1178, 1198, 1767, 1797, 1860, 2356, 2396, 2945, 2995, 3534, 3594, 5890, 5990, 7068, 7188, 8835, 8985, 11381, 11780, 11980, 17670, 17970, 18569, 22762, 34143, 35340, 35940, 37138, 45524, 55707, 56905, 68286, 74276, 92845, 111414, 113810, 136572, 170715, 185690, 222828, 227620, 278535, 341430, 352811, 371380, 557070, 682860, 705622, 1058433, 1114140, 1411244, 1764055, 2116866, 3528110, 4233732, 5292165, 7056220, 10584330, 21168660]

約数ペア:

[(1, 21168660), (2, 10584330), (3, 7056220), (4, 5292165), (5, 4233732), (6, 3528110), (10, 2116866), (12, 1764055), (15, 1411244), (19, 1114140), (20, 1058433), (30, 705622), (31, 682860), (38, 557070), (57, 371380), (60, 352811), (62, 341430), (76, 278535), (93, 227620), (95, 222828), (114, 185690), (124, 170715), (155, 136572), (186, 113810), (190, 111414), (228, 92845), (285, 74276), (310, 68286), (372, 56905), (380, 55707), (465, 45524), (570, 37138), (589, 35940), (599, 35340), (620, 34143), (930, 22762), (1140, 18569), (1178, 17970), (1198, 17670), (1767, 11980), (1797, 11780), (1860, 11381), (2356, 8985), (2396, 8835), (2945, 7188), (2995, 7068), (3534, 5990), (3594, 5890)]