21414800

素因数分解:

$2^4\times 5^2\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{157}}^1$

素因数の和:217

約数の個数: 120

約数和(自身を含む): 58305792

約数和(自身を除く): 36890992

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 25, 31, 40, 44, 50, 55, 62, 80, 88, 100, 110, 124, 155, 157, 176, 200, 220, 248, 275, 310, 314, 341, 400, 440, 496, 550, 620, 628, 682, 775, 785, 880, 1100, 1240, 1256, 1364, 1550, 1570, 1705, 1727, 2200, 2480, 2512, 2728, 3100, 3140, 3410, 3454, 3925, 4400, 4867, 5456, 6200, 6280, 6820, 6908, 7850, 8525, 8635, 9734, 12400, 12560, 13640, 13816, 15700, 17050, 17270, 19468, 24335, 27280, 27632, 31400, 34100, 34540, 38936, 43175, 48670, 53537, 62800, 68200, 69080, 77872, 86350, 97340, 107074, 121675, 136400, 138160, 172700, 194680, 214148, 243350, 267685, 345400, 389360, 428296, 486700, 535370, 690800, 856592, 973400, 1070740, 1338425, 1946800, 2141480, 2676850, 4282960, 5353700, 10707400, 21414800]

約数ペア:

[(1, 21414800), (2, 10707400), (4, 5353700), (5, 4282960), (8, 2676850), (10, 2141480), (11, 1946800), (16, 1338425), (20, 1070740), (22, 973400), (25, 856592), (31, 690800), (40, 535370), (44, 486700), (50, 428296), (55, 389360), (62, 345400), (80, 267685), (88, 243350), (100, 214148), (110, 194680), (124, 172700), (155, 138160), (157, 136400), (176, 121675), (200, 107074), (220, 97340), (248, 86350), (275, 77872), (310, 69080), (314, 68200), (341, 62800), (400, 53537), (440, 48670), (496, 43175), (550, 38936), (620, 34540), (628, 34100), (682, 31400), (775, 27632), (785, 27280), (880, 24335), (1100, 19468), (1240, 17270), (1256, 17050), (1364, 15700), (1550, 13816), (1570, 13640), (1705, 12560), (1727, 12400), (2200, 9734), (2480, 8635), (2512, 8525), (2728, 7850), (3100, 6908), (3140, 6820), (3410, 6280), (3454, 6200), (3925, 5456), (4400, 4867)]