21896360

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{613}}^1$

素因数の和:690

約数の個数: 64

約数和(自身を含む): 53049600

約数和(自身を除く): 31153240

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 47, 76, 94, 95, 152, 188, 190, 235, 376, 380, 470, 613, 760, 893, 940, 1226, 1786, 1880, 2452, 3065, 3572, 4465, 4904, 6130, 7144, 8930, 11647, 12260, 17860, 23294, 24520, 28811, 35720, 46588, 57622, 58235, 93176, 115244, 116470, 144055, 230488, 232940, 288110, 465880, 547409, 576220, 1094818, 1152440, 2189636, 2737045, 4379272, 5474090, 10948180, 21896360]

約数ペア:

[(1, 21896360), (2, 10948180), (4, 5474090), (5, 4379272), (8, 2737045), (10, 2189636), (19, 1152440), (20, 1094818), (38, 576220), (40, 547409), (47, 465880), (76, 288110), (94, 232940), (95, 230488), (152, 144055), (188, 116470), (190, 115244), (235, 93176), (376, 58235), (380, 57622), (470, 46588), (613, 35720), (760, 28811), (893, 24520), (940, 23294), (1226, 17860), (1786, 12260), (1880, 11647), (2452, 8930), (3065, 7144), (3572, 6130), (4465, 4904)]