21000992200

素因数分解:

$2^3\times 5^2\times {\mathrm{431}}^1\times {\mathrm{243631}}^1$

素因数の和:244078

約数の個数: 48

約数和(自身を含む): 48940796160

約数和(自身を除く): 27939803960

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 200, 431, 862, 1724, 2155, 3448, 4310, 8620, 10775, 17240, 21550, 43100, 86200, 243631, 487262, 974524, 1218155, 1949048, 2436310, 4872620, 6090775, 9745240, 12181550, 24363100, 48726200, 105004961, 210009922, 420019844, 525024805, 840039688, 1050049610, 2100099220, 2625124025, 4200198440, 5250248050, 10500496100, 21000992200]

約数ペア:

[(1, 21000992200), (2, 10500496100), (4, 5250248050), (5, 4200198440), (8, 2625124025), (10, 2100099220), (20, 1050049610), (25, 840039688), (40, 525024805), (50, 420019844), (100, 210009922), (200, 105004961), (431, 48726200), (862, 24363100), (1724, 12181550), (2155, 9745240), (3448, 6090775), (4310, 4872620), (8620, 2436310), (10775, 1949048), (17240, 1218155), (21550, 974524), (43100, 487262), (86200, 243631)]