21322420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{17}}^3\times {\mathrm{31}}^1$

素因数の和:98

約数の個数: 96

約数和(自身を含む): 56125440

約数和(自身を除く): 34803020

約数列:

[1, 2, 4, 5, 7, 10, 14, 17, 20, 28, 31, 34, 35, 62, 68, 70, 85, 119, 124, 140, 155, 170, 217, 238, 289, 310, 340, 434, 476, 527, 578, 595, 620, 868, 1054, 1085, 1156, 1190, 1445, 2023, 2108, 2170, 2380, 2635, 2890, 3689, 4046, 4340, 4913, 5270, 5780, 7378, 8092, 8959, 9826, 10115, 10540, 14756, 17918, 18445, 19652, 20230, 24565, 34391, 35836, 36890, 40460, 44795, 49130, 62713, 68782, 73780, 89590, 98260, 125426, 137564, 152303, 171955, 179180, 250852, 304606, 313565, 343910, 609212, 627130, 687820, 761515, 1066121, 1254260, 1523030, 2132242, 3046060, 4264484, 5330605, 10661210, 21322420]

約数ペア:

[(1, 21322420), (2, 10661210), (4, 5330605), (5, 4264484), (7, 3046060), (10, 2132242), (14, 1523030), (17, 1254260), (20, 1066121), (28, 761515), (31, 687820), (34, 627130), (35, 609212), (62, 343910), (68, 313565), (70, 304606), (85, 250852), (119, 179180), (124, 171955), (140, 152303), (155, 137564), (170, 125426), (217, 98260), (238, 89590), (289, 73780), (310, 68782), (340, 62713), (434, 49130), (476, 44795), (527, 40460), (578, 36890), (595, 35836), (620, 34391), (868, 24565), (1054, 20230), (1085, 19652), (1156, 18445), (1190, 17918), (1445, 14756), (2023, 10540), (2108, 10115), (2170, 9826), (2380, 8959), (2635, 8092), (2890, 7378), (3689, 5780), (4046, 5270), (4340, 4913)]