21962570

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{349}}^1$

素因数の和:423

約数の個数: 64

約数和(自身を含む): 48384000

約数和(自身を除く): 26421430

約数列:

[1, 2, 5, 7, 10, 14, 29, 31, 35, 58, 62, 70, 145, 155, 203, 217, 290, 310, 349, 406, 434, 698, 899, 1015, 1085, 1745, 1798, 2030, 2170, 2443, 3490, 4495, 4886, 6293, 8990, 10121, 10819, 12215, 12586, 20242, 21638, 24430, 31465, 50605, 54095, 62930, 70847, 75733, 101210, 108190, 141694, 151466, 313751, 354235, 378665, 627502, 708470, 757330, 1568755, 2196257, 3137510, 4392514, 10981285, 21962570]

約数ペア:

[(1, 21962570), (2, 10981285), (5, 4392514), (7, 3137510), (10, 2196257), (14, 1568755), (29, 757330), (31, 708470), (35, 627502), (58, 378665), (62, 354235), (70, 313751), (145, 151466), (155, 141694), (203, 108190), (217, 101210), (290, 75733), (310, 70847), (349, 62930), (406, 54095), (434, 50605), (698, 31465), (899, 24430), (1015, 21638), (1085, 20242), (1745, 12586), (1798, 12215), (2030, 10819), (2170, 10121), (2443, 8990), (3490, 6293), (4495, 4886)]