21009574728

素因数分解:

$2^3\times 3^2\times {\mathrm{37}}^1\times {\mathrm{109}}^1\times {\mathrm{72353}}^1$

素因数の和:72511

約数の個数: 96

約数和(自身を含む): 58975745400

約数和(自身を除く): 37966170672

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 37, 72, 74, 109, 111, 148, 218, 222, 296, 327, 333, 436, 444, 654, 666, 872, 888, 981, 1308, 1332, 1962, 2616, 2664, 3924, 4033, 7848, 8066, 12099, 16132, 24198, 32264, 36297, 48396, 72353, 72594, 96792, 144706, 145188, 217059, 289412, 290376, 434118, 578824, 651177, 868236, 1302354, 1736472, 2604708, 2677061, 5209416, 5354122, 7886477, 8031183, 10708244, 15772954, 16062366, 21416488, 23659431, 24093549, 31545908, 32124732, 47318862, 48187098, 63091816, 64249464, 70978293, 94637724, 96374196, 141956586, 189275448, 192748392, 283913172, 291799649, 567826344, 583599298, 875398947, 1167198596, 1750797894, 2334397192, 2626196841, 3501595788, 5252393682, 7003191576, 10504787364, 21009574728]

約数ペア:

[(1, 21009574728), (2, 10504787364), (3, 7003191576), (4, 5252393682), (6, 3501595788), (8, 2626196841), (9, 2334397192), (12, 1750797894), (18, 1167198596), (24, 875398947), (36, 583599298), (37, 567826344), (72, 291799649), (74, 283913172), (109, 192748392), (111, 189275448), (148, 141956586), (218, 96374196), (222, 94637724), (296, 70978293), (327, 64249464), (333, 63091816), (436, 48187098), (444, 47318862), (654, 32124732), (666, 31545908), (872, 24093549), (888, 23659431), (981, 21416488), (1308, 16062366), (1332, 15772954), (1962, 10708244), (2616, 8031183), (2664, 7886477), (3924, 5354122), (4033, 5209416), (7848, 2677061), (8066, 2604708), (12099, 1736472), (16132, 1302354), (24198, 868236), (32264, 651177), (36297, 578824), (48396, 434118), (72353, 290376), (72594, 289412), (96792, 217059), (144706, 145188)]