21348250

素因数分解:

$2^1\times 5^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{1109}}^1$

素因数の和:1144

約数の個数: 64

約数和(自身を含む): 49870080

約数和(自身を除く): 28521830

約数列:

[1, 2, 5, 7, 10, 11, 14, 22, 25, 35, 50, 55, 70, 77, 110, 125, 154, 175, 250, 275, 350, 385, 550, 770, 875, 1109, 1375, 1750, 1925, 2218, 2750, 3850, 5545, 7763, 9625, 11090, 12199, 15526, 19250, 24398, 27725, 38815, 55450, 60995, 77630, 85393, 121990, 138625, 170786, 194075, 277250, 304975, 388150, 426965, 609950, 853930, 970375, 1524875, 1940750, 2134825, 3049750, 4269650, 10674125, 21348250]

約数ペア:

[(1, 21348250), (2, 10674125), (5, 4269650), (7, 3049750), (10, 2134825), (11, 1940750), (14, 1524875), (22, 970375), (25, 853930), (35, 609950), (50, 426965), (55, 388150), (70, 304975), (77, 277250), (110, 194075), (125, 170786), (154, 138625), (175, 121990), (250, 85393), (275, 77630), (350, 60995), (385, 55450), (550, 38815), (770, 27725), (875, 24398), (1109, 19250), (1375, 15526), (1750, 12199), (1925, 11090), (2218, 9625), (2750, 7763), (3850, 5545)]