21069090

素因数分解:

$2^1\times 3^2\times 5^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{631}}^1$

素因数の和:704

約数の個数: 96

約数和(自身を含む): 63887616

約数和(自身を除く): 42818526

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 30, 35, 42, 45, 53, 63, 70, 90, 105, 106, 126, 159, 210, 265, 315, 318, 371, 477, 530, 630, 631, 742, 795, 954, 1113, 1262, 1590, 1855, 1893, 2226, 2385, 3155, 3339, 3710, 3786, 4417, 4770, 5565, 5679, 6310, 6678, 8834, 9465, 11130, 11358, 13251, 16695, 18930, 22085, 26502, 28395, 33390, 33443, 39753, 44170, 56790, 66255, 66886, 79506, 100329, 132510, 167215, 198765, 200658, 234101, 300987, 334430, 397530, 468202, 501645, 601974, 702303, 1003290, 1170505, 1404606, 1504935, 2106909, 2341010, 3009870, 3511515, 4213818, 7023030, 10534545, 21069090]

約数ペア:

[(1, 21069090), (2, 10534545), (3, 7023030), (5, 4213818), (6, 3511515), (7, 3009870), (9, 2341010), (10, 2106909), (14, 1504935), (15, 1404606), (18, 1170505), (21, 1003290), (30, 702303), (35, 601974), (42, 501645), (45, 468202), (53, 397530), (63, 334430), (70, 300987), (90, 234101), (105, 200658), (106, 198765), (126, 167215), (159, 132510), (210, 100329), (265, 79506), (315, 66886), (318, 66255), (371, 56790), (477, 44170), (530, 39753), (630, 33443), (631, 33390), (742, 28395), (795, 26502), (954, 22085), (1113, 18930), (1262, 16695), (1590, 13251), (1855, 11358), (1893, 11130), (2226, 9465), (2385, 8834), (3155, 6678), (3339, 6310), (3710, 5679), (3786, 5565), (4417, 4770)]