21699990

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{1091}}^1$

素因数の和:1134

約数の個数: 96

約数和(自身を含む): 64393056

約数和(自身を除く): 42693066

約数列:

[1, 2, 3, 5, 6, 9, 10, 13, 15, 17, 18, 26, 30, 34, 39, 45, 51, 65, 78, 85, 90, 102, 117, 130, 153, 170, 195, 221, 234, 255, 306, 390, 442, 510, 585, 663, 765, 1091, 1105, 1170, 1326, 1530, 1989, 2182, 2210, 3273, 3315, 3978, 5455, 6546, 6630, 9819, 9945, 10910, 14183, 16365, 18547, 19638, 19890, 28366, 32730, 37094, 42549, 49095, 55641, 70915, 85098, 92735, 98190, 111282, 127647, 141830, 166923, 185470, 212745, 241111, 255294, 278205, 333846, 425490, 482222, 556410, 638235, 723333, 834615, 1205555, 1276470, 1446666, 1669230, 2169999, 2411110, 3616665, 4339998, 7233330, 10849995, 21699990]

約数ペア:

[(1, 21699990), (2, 10849995), (3, 7233330), (5, 4339998), (6, 3616665), (9, 2411110), (10, 2169999), (13, 1669230), (15, 1446666), (17, 1276470), (18, 1205555), (26, 834615), (30, 723333), (34, 638235), (39, 556410), (45, 482222), (51, 425490), (65, 333846), (78, 278205), (85, 255294), (90, 241111), (102, 212745), (117, 185470), (130, 166923), (153, 141830), (170, 127647), (195, 111282), (221, 98190), (234, 92735), (255, 85098), (306, 70915), (390, 55641), (442, 49095), (510, 42549), (585, 37094), (663, 32730), (765, 28366), (1091, 19890), (1105, 19638), (1170, 18547), (1326, 16365), (1530, 14183), (1989, 10910), (2182, 9945), (2210, 9819), (3273, 6630), (3315, 6546), (3978, 5455)]