About the Number

21021930

21021929 ← → 21021931

2進数表記:1010000001100010011101010

漢数字表記:二千百二万千九百三十

素因数分解:

2 1 × 3 5 × 5 1 × 41 1 × 211 1

素因数の和:274
約数の個数: 96
約数和(自身を含む): 58339008
約数和(自身を除く): 37317078

約数列:
[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 41, 45, 54, 81, 82, 90, 123, 135, 162, 205, 211, 243, 246, 270, 369, 405, 410, 422, 486, 615, 633, 738, 810, 1055, 1107, 1215, 1230, 1266, 1845, 1899, 2110, 2214, 2430, 3165, 3321, 3690, 3798, 5535, 5697, 6330, 6642, 8651, 9495, 9963, 11070, 11394, 16605, 17091, 17302, 18990, 19926, 25953, 28485, 33210, 34182, 43255, 49815, 51273, 51906, 56970, 77859, 85455, 86510, 99630, 102546, 129765, 155718, 170910, 233577, 256365, 259530, 389295, 467154, 512730, 700731, 778590, 1167885, 1401462, 2102193, 2335770, 3503655, 4204386, 7007310, 10510965, 21021930]

約数ペア:
[(1, 21021930), (2, 10510965), (3, 7007310), (5, 4204386), (6, 3503655), (9, 2335770), (10, 2102193), (15, 1401462), (18, 1167885), (27, 778590), (30, 700731), (41, 512730), (45, 467154), (54, 389295), (81, 259530), (82, 256365), (90, 233577), (123, 170910), (135, 155718), (162, 129765), (205, 102546), (211, 99630), (243, 86510), (246, 85455), (270, 77859), (369, 56970), (405, 51906), (410, 51273), (422, 49815), (486, 43255), (615, 34182), (633, 33210), (738, 28485), (810, 25953), (1055, 19926), (1107, 18990), (1215, 17302), (1230, 17091), (1266, 16605), (1845, 11394), (1899, 11070), (2110, 9963), (2214, 9495), (2430, 8651), (3165, 6642), (3321, 6330), (3690, 5697), (3798, 5535)]

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