21890652

素因数分解:

$2^2\times 3^1\times 7^2\times {\mathrm{59}}^1\times {\mathrm{631}}^1$

素因数の和:711

約数の個数: 72

約数和(自身を含む): 60520320

約数和(自身を除く): 38629668

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 49, 59, 84, 98, 118, 147, 177, 196, 236, 294, 354, 413, 588, 631, 708, 826, 1239, 1262, 1652, 1893, 2478, 2524, 2891, 3786, 4417, 4956, 5782, 7572, 8673, 8834, 11564, 13251, 17346, 17668, 26502, 30919, 34692, 37229, 53004, 61838, 74458, 92757, 111687, 123676, 148916, 185514, 223374, 260603, 371028, 446748, 521206, 781809, 1042412, 1563618, 1824221, 3127236, 3648442, 5472663, 7296884, 10945326, 21890652]

約数ペア:

[(1, 21890652), (2, 10945326), (3, 7296884), (4, 5472663), (6, 3648442), (7, 3127236), (12, 1824221), (14, 1563618), (21, 1042412), (28, 781809), (42, 521206), (49, 446748), (59, 371028), (84, 260603), (98, 223374), (118, 185514), (147, 148916), (177, 123676), (196, 111687), (236, 92757), (294, 74458), (354, 61838), (413, 53004), (588, 37229), (631, 34692), (708, 30919), (826, 26502), (1239, 17668), (1262, 17346), (1652, 13251), (1893, 11564), (2478, 8834), (2524, 8673), (2891, 7572), (3786, 5782), (4417, 4956)]