21824940

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{21397}}^1$

素因数の和:21426

約数の個数: 48

約数和(自身を含む): 64707552

約数和(自身を除く): 42882612

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 17, 20, 30, 34, 51, 60, 68, 85, 102, 170, 204, 255, 340, 510, 1020, 21397, 42794, 64191, 85588, 106985, 128382, 213970, 256764, 320955, 363749, 427940, 641910, 727498, 1091247, 1283820, 1454996, 1818745, 2182494, 3637490, 4364988, 5456235, 7274980, 10912470, 21824940]

約数ペア:

[(1, 21824940), (2, 10912470), (3, 7274980), (4, 5456235), (5, 4364988), (6, 3637490), (10, 2182494), (12, 1818745), (15, 1454996), (17, 1283820), (20, 1091247), (30, 727498), (34, 641910), (51, 427940), (60, 363749), (68, 320955), (85, 256764), (102, 213970), (170, 128382), (204, 106985), (255, 85588), (340, 64191), (510, 42794), (1020, 21397)]