21526648

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{607}}^1$

素因数の和:668

約数の個数: 64

約数和(自身を含む): 49029120

約数和(自身を除く): 27502472

約数列:

[1, 2, 4, 8, 11, 13, 22, 26, 31, 44, 52, 62, 88, 104, 124, 143, 248, 286, 341, 403, 572, 607, 682, 806, 1144, 1214, 1364, 1612, 2428, 2728, 3224, 4433, 4856, 6677, 7891, 8866, 13354, 15782, 17732, 18817, 26708, 31564, 35464, 37634, 53416, 63128, 75268, 86801, 150536, 173602, 206987, 244621, 347204, 413974, 489242, 694408, 827948, 978484, 1655896, 1956968, 2690831, 5381662, 10763324, 21526648]

約数ペア:

[(1, 21526648), (2, 10763324), (4, 5381662), (8, 2690831), (11, 1956968), (13, 1655896), (22, 978484), (26, 827948), (31, 694408), (44, 489242), (52, 413974), (62, 347204), (88, 244621), (104, 206987), (124, 173602), (143, 150536), (248, 86801), (286, 75268), (341, 63128), (403, 53416), (572, 37634), (607, 35464), (682, 31564), (806, 26708), (1144, 18817), (1214, 17732), (1364, 15782), (1612, 13354), (2428, 8866), (2728, 7891), (3224, 6677), (4433, 4856)]