21966910

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{191}}^1$

素因数の和:289

約数の個数: 64

約数和(自身を含む): 47775744

約数和(自身を除く): 25808834

約数列:

[1, 2, 5, 7, 10, 14, 31, 35, 53, 62, 70, 106, 155, 191, 217, 265, 310, 371, 382, 434, 530, 742, 955, 1085, 1337, 1643, 1855, 1910, 2170, 2674, 3286, 3710, 5921, 6685, 8215, 10123, 11501, 11842, 13370, 16430, 20246, 23002, 29605, 41447, 50615, 57505, 59210, 70861, 82894, 101230, 115010, 141722, 207235, 313813, 354305, 414470, 627626, 708610, 1569065, 2196691, 3138130, 4393382, 10983455, 21966910]

約数ペア:

[(1, 21966910), (2, 10983455), (5, 4393382), (7, 3138130), (10, 2196691), (14, 1569065), (31, 708610), (35, 627626), (53, 414470), (62, 354305), (70, 313813), (106, 207235), (155, 141722), (191, 115010), (217, 101230), (265, 82894), (310, 70861), (371, 59210), (382, 57505), (434, 50615), (530, 41447), (742, 29605), (955, 23002), (1085, 20246), (1337, 16430), (1643, 13370), (1855, 11842), (1910, 11501), (2170, 10123), (2674, 8215), (3286, 6685), (3710, 5921)]