21277900

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{113}}^1\times {\mathrm{269}}^1$

素因数の和:403

約数の個数: 72

約数和(自身を含む): 53434080

約数和(自身を除く): 32156180

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 50, 70, 100, 113, 140, 175, 226, 269, 350, 452, 538, 565, 700, 791, 1076, 1130, 1345, 1582, 1883, 2260, 2690, 2825, 3164, 3766, 3955, 5380, 5650, 6725, 7532, 7910, 9415, 11300, 13450, 15820, 18830, 19775, 26900, 30397, 37660, 39550, 47075, 60794, 79100, 94150, 121588, 151985, 188300, 212779, 303970, 425558, 607940, 759925, 851116, 1063895, 1519850, 2127790, 3039700, 4255580, 5319475, 10638950, 21277900]

約数ペア:

[(1, 21277900), (2, 10638950), (4, 5319475), (5, 4255580), (7, 3039700), (10, 2127790), (14, 1519850), (20, 1063895), (25, 851116), (28, 759925), (35, 607940), (50, 425558), (70, 303970), (100, 212779), (113, 188300), (140, 151985), (175, 121588), (226, 94150), (269, 79100), (350, 60794), (452, 47075), (538, 39550), (565, 37660), (700, 30397), (791, 26900), (1076, 19775), (1130, 18830), (1345, 15820), (1582, 13450), (1883, 11300), (2260, 9415), (2690, 7910), (2825, 7532), (3164, 6725), (3766, 5650), (3955, 5380)]