21242190

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{83}}^1\times {\mathrm{449}}^1$

素因数の和:561

約数の個数: 64

約数和(自身を含む): 54432000

約数和(自身を除く): 33189810

約数列:

[1, 2, 3, 5, 6, 10, 15, 19, 30, 38, 57, 83, 95, 114, 166, 190, 249, 285, 415, 449, 498, 570, 830, 898, 1245, 1347, 1577, 2245, 2490, 2694, 3154, 4490, 4731, 6735, 7885, 8531, 9462, 13470, 15770, 17062, 23655, 25593, 37267, 42655, 47310, 51186, 74534, 85310, 111801, 127965, 186335, 223602, 255930, 372670, 559005, 708073, 1118010, 1416146, 2124219, 3540365, 4248438, 7080730, 10621095, 21242190]

約数ペア:

[(1, 21242190), (2, 10621095), (3, 7080730), (5, 4248438), (6, 3540365), (10, 2124219), (15, 1416146), (19, 1118010), (30, 708073), (38, 559005), (57, 372670), (83, 255930), (95, 223602), (114, 186335), (166, 127965), (190, 111801), (249, 85310), (285, 74534), (415, 51186), (449, 47310), (498, 42655), (570, 37267), (830, 25593), (898, 23655), (1245, 17062), (1347, 15770), (1577, 13470), (2245, 9462), (2490, 8531), (2694, 7885), (3154, 6735), (4490, 4731)]