21308385700

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{149}}^1\times {\mathrm{204299}}^1$

素因数の和:204469

約数の個数: 72

約数和(自身を含む): 53199720000

約数和(自身を除く): 31891334300

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 50, 70, 100, 140, 149, 175, 298, 350, 596, 700, 745, 1043, 1490, 2086, 2980, 3725, 4172, 5215, 7450, 10430, 14900, 20860, 26075, 52150, 104300, 204299, 408598, 817196, 1021495, 1430093, 2042990, 2860186, 4085980, 5107475, 5720372, 7150465, 10214950, 14300930, 20429900, 28601860, 30440551, 35752325, 60881102, 71504650, 121762204, 143009300, 152202755, 213083857, 304405510, 426167714, 608811020, 761013775, 852335428, 1065419285, 1522027550, 2130838570, 3044055100, 4261677140, 5327096425, 10654192850, 21308385700]

約数ペア:

[(1, 21308385700), (2, 10654192850), (4, 5327096425), (5, 4261677140), (7, 3044055100), (10, 2130838570), (14, 1522027550), (20, 1065419285), (25, 852335428), (28, 761013775), (35, 608811020), (50, 426167714), (70, 304405510), (100, 213083857), (140, 152202755), (149, 143009300), (175, 121762204), (298, 71504650), (350, 60881102), (596, 35752325), (700, 30440551), (745, 28601860), (1043, 20429900), (1490, 14300930), (2086, 10214950), (2980, 7150465), (3725, 5720372), (4172, 5107475), (5215, 4085980), (7450, 2860186), (10430, 2042990), (14900, 1430093), (20860, 1021495), (26075, 817196), (52150, 408598), (104300, 204299)]