21242019950

素因数分解:

$2^1\times 5^2\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{721291}}^1$

素因数の和:721353

約数の個数: 48

約数和(自身を含む): 42931299840

約数和(自身を除く): 21689279890

約数列:

[1, 2, 5, 10, 19, 25, 31, 38, 50, 62, 95, 155, 190, 310, 475, 589, 775, 950, 1178, 1550, 2945, 5890, 14725, 29450, 721291, 1442582, 3606455, 7212910, 13704529, 18032275, 22360021, 27409058, 36064550, 44720042, 68522645, 111800105, 137045290, 223600210, 342613225, 424840399, 559000525, 685226450, 849680798, 1118001050, 2124201995, 4248403990, 10621009975, 21242019950]

約数ペア:

[(1, 21242019950), (2, 10621009975), (5, 4248403990), (10, 2124201995), (19, 1118001050), (25, 849680798), (31, 685226450), (38, 559000525), (50, 424840399), (62, 342613225), (95, 223600210), (155, 137045290), (190, 111800105), (310, 68522645), (475, 44720042), (589, 36064550), (775, 27409058), (950, 22360021), (1178, 18032275), (1550, 13704529), (2945, 7212910), (5890, 3606455), (14725, 1442582), (29450, 721291)]