21319848

素因数分解:

$2^3\times 3^5\times {\mathrm{11}}^1\times {\mathrm{997}}^1$

素因数の和:1029

約数の個数: 96

約数和(自身を含む): 65388960

約数和(自身を除く): 44069112

約数列:

[1, 2, 3, 4, 6, 8, 9, 11, 12, 18, 22, 24, 27, 33, 36, 44, 54, 66, 72, 81, 88, 99, 108, 132, 162, 198, 216, 243, 264, 297, 324, 396, 486, 594, 648, 792, 891, 972, 997, 1188, 1782, 1944, 1994, 2376, 2673, 2991, 3564, 3988, 5346, 5982, 7128, 7976, 8973, 10692, 10967, 11964, 17946, 21384, 21934, 23928, 26919, 32901, 35892, 43868, 53838, 65802, 71784, 80757, 87736, 98703, 107676, 131604, 161514, 197406, 215352, 242271, 263208, 296109, 323028, 394812, 484542, 592218, 646056, 789624, 888327, 969084, 1184436, 1776654, 1938168, 2368872, 2664981, 3553308, 5329962, 7106616, 10659924, 21319848]

約数ペア:

[(1, 21319848), (2, 10659924), (3, 7106616), (4, 5329962), (6, 3553308), (8, 2664981), (9, 2368872), (11, 1938168), (12, 1776654), (18, 1184436), (22, 969084), (24, 888327), (27, 789624), (33, 646056), (36, 592218), (44, 484542), (54, 394812), (66, 323028), (72, 296109), (81, 263208), (88, 242271), (99, 215352), (108, 197406), (132, 161514), (162, 131604), (198, 107676), (216, 98703), (243, 87736), (264, 80757), (297, 71784), (324, 65802), (396, 53838), (486, 43868), (594, 35892), (648, 32901), (792, 26919), (891, 23928), (972, 21934), (997, 21384), (1188, 17946), (1782, 11964), (1944, 10967), (1994, 10692), (2376, 8973), (2673, 7976), (2991, 7128), (3564, 5982), (3988, 5346)]