21995028

素因数分解:

$2^2\times 3^2\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{829}}^1$

素因数の和:917

約数の個数: 72

約数和(自身を含む): 61632480

約数和(自身を除く): 39637452

約数列:

[1, 2, 3, 4, 6, 9, 11, 12, 18, 22, 33, 36, 44, 66, 67, 99, 132, 134, 198, 201, 268, 396, 402, 603, 737, 804, 829, 1206, 1474, 1658, 2211, 2412, 2487, 2948, 3316, 4422, 4974, 6633, 7461, 8844, 9119, 9948, 13266, 14922, 18238, 26532, 27357, 29844, 36476, 54714, 55543, 82071, 109428, 111086, 164142, 166629, 222172, 328284, 333258, 499887, 610973, 666516, 999774, 1221946, 1832919, 1999548, 2443892, 3665838, 5498757, 7331676, 10997514, 21995028]

約数ペア:

[(1, 21995028), (2, 10997514), (3, 7331676), (4, 5498757), (6, 3665838), (9, 2443892), (11, 1999548), (12, 1832919), (18, 1221946), (22, 999774), (33, 666516), (36, 610973), (44, 499887), (66, 333258), (67, 328284), (99, 222172), (132, 166629), (134, 164142), (198, 111086), (201, 109428), (268, 82071), (396, 55543), (402, 54714), (603, 36476), (737, 29844), (804, 27357), (829, 26532), (1206, 18238), (1474, 14922), (1658, 13266), (2211, 9948), (2412, 9119), (2487, 8844), (2948, 7461), (3316, 6633), (4422, 4974)]